Shaine Casas Blasts 43.87 100 Backstroke to Become 3rd-Fastest All-Time (Video)


  • Wednesday, November 18-Friday, November 20
  • Teams: Texas A&M, LSU, Incarnate Word
  • Texas A&M University, College Station, Texas
  • Prelims/Finals
  • Format: Short Course Yards (SCY)
  • Prelims @10AM Central, Finals @6PM Central
  • 2021 NCAA Championship Qualifying Times
  • Results Available on Meet Mobile: “Art Adamson Invitational”
  • Live Results

Texas A&M junior Shaine Casas has done it again, this time becoming one of only 4 men to ever break the 44-second barrier with a 43.87 in the 100 yard backstroke on night 2 of the 2020 Art Adamson Invite in College Station.

For Casas, the time is a new SEC Record, Texas A&M program record, and Texas A&M pool record, lowering his own mark set Wednesday.

On Wednesday, Casas posted a monstrous 1:38.95 in the 200 yard IM to become the third-fastest performer all-time and take nearly a second off his previous lifetime best. He followed that up with another best time in the 100 backstroke leading off the medley relay with a 44.25. Tonight, Casas broke a barrier that only 3 other men in history have with his 43.87 in the 100 backstroke. Before tonight, Casas was ranked 8th all-time in the 100 back with his 44.25 from Wednesday, which also registers as the 4th-fastest relay split of all time for the 100 backstroke.

Top-10 Performers All-Time, Men’s 100 Yard Backstroke

  1. Ryan Murphy, 43.49
  2. Dean Farris, 43.66
  3. Shaine Casas, 43.87
  4. Coleman Stewart, 43.98
  5. Nick Thoman, 44.07
  6. Zane Waddell, 44.10
  7. Zachary Poti, 44.14
  8. Mark Nikolaev, 44.33
  9. John Shebat, 44.35
  10. Matt Grevers, 44.49

Comparing his splits, Casas has gradually improved both the first and the second 50s of his race, though tonight both splits were dramatically faster than ever in the past, especially the second 50. Casas was a 20.82 leading off the 200 medley relay this evening as well.

Casas 10/16/20 Casas 11/18/20 Casas 11/19/20
1st 50 21.37 21.24 21.07
2nd 50 23.03 23.01 22.80
Total Time 44.40 44.25 43.87

Looking at all the men that have ever broken 44 in the 100 backstroke we see that the 2 fastest, Murphy and Farris, were both out under 21 seconds on the first 50, though one thing all of them have in common is that they were under 23 on the second 50. Coleman Stewart, who has the slowest opening 50 by a sizable margin, boasts the second-fastest closing 50 behind only Murphy, the NCAA, U.S. Open, and American Record Holder and World Record holder in the 100 LCM backstroke.

Murphy 2016 Farris 2019 Casas 2020 Stewart 2019
1st 50 20.96 20.85 21.07 21.38
2nd 50 22.53 22.81 22.80 22.60
Total Time 43.49 43.66 43.87 43.98

Casas will swim the 200 backstroke on Friday, the final day of the meet. Casas posted a 1:36.54 in October to become the 4th-fastest man all-time in the race, and given that he dropped nearly an entire second in the 200 IM, and now a full 0.53 in the 100 backstroke, he has a very reasonable shot at Murphy’s American Record of 1:35.73 set in 2016.

Casas Swims 43.87 100 Yard Backstroke

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9 months ago

Wow. I’m not as surprised because of the 44.2 from earlier. But still. I think the 200 back record is under threat.

9 months ago

How does he consistently go best time at every meet?! His Progression so far has been insane, excited to see the future he’ll have in the sport.

9 months ago

Thats just filthy

9 months ago

This man can do no harm

9 months ago

I say he clips Murphy’s record tomorrow

9 months ago

Reeeeally woulda liked to see a 200fr outta Casas!

9 months ago

Farris vs Casas is gonna be interesting

Reply to  Swimmer
9 months ago

Is Farris back at Harvard? I thought the Ivy league shutdown.

Reply to  Swimmer
9 months ago

Alas, Harvard is not doing swimming this year . . .

Reply to  swimgeek
9 months ago

That brings up a question then will he get another year at Harvard due to this?

Reply to  Swimfish87
9 months ago

Ivys have some tougher eligibility rules than most schools (and Dean already took a redshirt year). That said, I would think that given the circumstances, Dean would get another year if he wants it. But does he want it? He will graduate this year. And if he makes the Olympics, he may prefer to cash in on that and turn pro.

Reply to  swimgeek
9 months ago

Assuming he gets his degree, he would need to be enrolled in another program to be eligible. If he is planning on getting an advanced degree, then maybe he will stay.

Reply to  Swimfish87
9 months ago

I’ve heard from a Harvard commit that he will be back for the 2021-22 season. Not 100% sure on it though.

Casas 100 back gold in Tokyo
9 months ago


About Reid Carlson

Reid Carlson

Reid Carlson originally hails from Clay Center, Kansas, where he began swimming at age six.  At age 14 he began swimming club year-round and later with his high school team, making state all four years.  He was fortunate enough to draw the attention of Kalamazoo College where he went on to …

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